Karthika Sadasivam
Summary
Software Development Professional with 9.5 years of hands-on experience in designing and developing robust microservices and web applications using Java/J2EE frameworks.
Overview
9
9
years of professional experience
Work History
Full Stack Application Developer
Elitez Pte Ltd (Client: CPF Board)
01.2022 - Current
- Requirements Gathering: Collaborated with stakeholders to gather requirements and prepare comprehensive Software Requirements Specification (SRS) and Software Design Specification (SDS) documents.
- Service Development: Engineered and developed microservices based on SDS, followed by rigorous unit testing to ensure robust functionality.
- Test Data and Suite Preparation: Orchestrated test data preparation and constructed detailed test suites. Led System Integration Testing (SIT) and supported automation and User Acceptance Testing (UAT), ensuring seamless project delivery.
- API Management: Architected and maintained RESTful APIs, facilitating seamless integration with various external systems.
- Production Deployment: Played a pivotal role in production deployments, addressing and resolving post-deployment issues efficiently.
- Code Review and Mentorship: Spearheaded code reviews and mentored junior developers, fostering a collaborative environment and ensuring adherence to high coding standards.
- CI/CD Implementation: Practiced Continuous Integration and Continuous Deployment (CI/CD) methodologies for automated and efficient deployments.
- Technologies Used: Java 8, Spring Boot, REST API, DB2, JUnit 5, Angular 5, Elixir reports.
Application Developer
Optimum Solutions (Client: Singtel)
01.2021 - 01.2022
- Microservices Development: Engineered and maintained microservices for broadband service activation leveraging Spring Boot and Apache Camel, ensuring high performance and scalability.
- Frontend Enhancement: Enhanced and optimized the React UI for better user experience and responsiveness.
- CI/CD Management: Managed Continuous Integration and Continuous Deployment (CI/CD) pipelines and Helm charts for System Integration Testing (SIT) and User Acceptance Testing (UAT) environments, ensuring smooth and automated deployment processes.
- Performance Optimization: Conducted performance testing to identify and address system bottlenecks, ensuring efficient operation and optimal performance.
- Technologies Used: Spring Boot, Apache Camel, Kafka, PostgreSQL, MongoDB, Red Hat Ansible Tower.
System Analyst
Alltech Systems (Client: HDB)
01.2020 - 01.2021
- Developed Web Applications: Utilized JSF (JavaServer Faces) and PrimeFaces to create interactive and dynamic web applications.
- Migration: Migrated mainframe jobs to Java APIs, ensuring smooth transitions and comprehensive project documentation and testing.
- Testing: Led System Integration Testing (SIT) and provided support to User Acceptance Testing (UAT) teams.
- Technologies Used: Proficient in Spring Boot, DB2, Rest APIs, Spring Batch, Jenkins, and SonarQube.
System Analyst
Emson Systems (Client: HDB)
06.2018 - 12.2019
- Web Application Development: Developed applications for LM&E systems management using JSF/PrimeFaces and Spring Boot.
- REST Services: Configured secure REST services and performed thorough testing to ensure robustness.
- Technologies Used: REST API, JSF/PrimeFaces, SQL/DB2, WebSphere, IBM API Connect.
Programmer
Spiro Solutions (Client: Royal Sundaram Finance)
04.2015 - 11.2017
- Insurance Domain Project: Designed and implemented modules tailored to the insurance sector.
- System Testing & Production Support: Conducted system testing and addressed production issues to maintain system reliability.
- Technologies Used: JSF/PrimeFaces, EJB, SQL/DB2, Apache Tomcat.
Education
Master of Engineering - Computer Science
Nehru Institute of Technology, Anna University
Coimbatore06.2015
Bachelor of Technology - Information Technology
Idhaya Engineering College, Anna University
Chinnasalem04.2012
Skills
- Programming Languages: Java (11, 8 , 7 and below), Python 3
- Frontend Frameworks: Angular 5, JSF/Prime Faces 7
- Backend Frameworks: Spring Boot 24, Spring Batch, EJB 31,
- Databases: PostgreSQL 42, DB2 115, MongoDB 40
- Servers: WebSphere 9, Apache Tomcat 8
- Testing Tools: JUnit 4, Postman, SoapUI
- API Gateways: IBM API Connect, Kong
- Event Streaming: Apache Kafka 20
- Integration Frameworks: Apache Camel 37
- DevOps & CI/CD: Jenkins, Docker, Kubernetes, Red Hat OpenShift, Ansible Tower
- Monitoring & Logging: Prometheus, Grafana, Jennifer, Jaeger UI, Kibana
- Version Control: Bit Bucket, Serena Dimensions, IBM RTC
- Code Quality Assurance: SonarQube 861, HP Fortify
- Software Development Methodologies: Agile, Waterfall
Projects
CPF Board, Singapore:
- SA Closure: Developed services for the closure of Special Accounts and fund transfers.
- LPSA Monthly Series & GL Reconciliation Series: Migrated from mainframe to Java APIs, prepared SRS/SDS, and supported testing and production onboarding.
Singtel, Singapore:
- Naas Service Activation & Configuration: Built microservices for broadband service management with Java, Kafka and Postgres and Mongo DB.
Housing Development Board, Singapore:
- LM&E Systems Management: Developed a digital platform for component data submission, workflow for submission, approval, rejection, acknowledgement and report generation.
- HDB Project Management Portal: Enhanced a portal for project data collection and reporting.
Spriro Solutions, Chennai:
- Royal Sundaram General Finance DTCADMIN: Managed insurance domain processes including agent registration and policy management.
Spiro R&D Centre, Chennai:
- Payroll and Billing Management Software: Developed modules to automate payroll and billing processes.
Personal Particulars
Nationality: Indian
Date of Birth: 18 October 1991
Timeline
Full Stack Application Developer
Elitez Pte Ltd (Client: CPF Board)
01.2022 - Current
Application Developer
Optimum Solutions (Client: Singtel)
01.2021 - 01.2022
System Analyst
Alltech Systems (Client: HDB)
01.2020 - 01.2021
System Analyst
Emson Systems (Client: HDB)
06.2018 - 12.2019
Programmer
Spiro Solutions (Client: Royal Sundaram Finance)
04.2015 - 11.2017
Master of Engineering - Computer Science
Nehru Institute of Technology, Anna University
Bachelor of Technology - Information Technology
Idhaya Engineering College, Anna University
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